This 747 Jumbo jet is on display at the Technik Museum in Speyer which is about an hours drive from Stuttgart. It part of one of a few great automotive and aeronautic museums found throughout Germany. The 747 is the real thing it is a Lufthansa aircraft which has been decommissioned. You can climb the stairs and inspect the whole plane including the cargo hold which is quiet interesting. The museum has hundreds of other displays including submarines, trains, planes, cars, boats you name it- if it moves they will have one. There is also a IMax theatre, a really good cafe which serves good food and drinks including some of the regions best beer and wine and of course a gift shop which has got some great things to purchase.
Speyer Technik Museum Website